There is one place where we can possibly get some accurate stats on RPers - The WoW Community Council forum. If I counted correctly 41 players posted in the “Introduce Yourself Here” thread. I tried to be as thorough as possible, scanning the thread multiple times. I found 8 council members including RP in their introductory posts. 8/41 puts it at about 19% . Not a bad level of interest. But take a deeper look - I’ve put a 
beneath the ones I read as clearly indicating they actively RP and so would have it as one of the foci for their time on the WCC.
I dabble in RP
Started off RPing for fun with friends, and pet battling. Which led into raiding casually… Which led into guild hopping at the US100 level…
I primarily play on RP servers due to the generally nicer atmosphere and have a history of going through long roleplaying campaigns (and dungeons/raids) with a group of friends although I haven’t done this much these last few years due to friends leaving and other interests taking up most of my time.
What I do want to focus on is the RP aspect of things. While WoW may be RP friendly, comparing it to other MMORPGs and with the general feel of RP the last years, it could be massively improved.
I will keep in touch with my fellow Warcraft RPers and will try my best to be a voice for the RP community as a whole, not just my own views and opinions.
I’ve organised lots of community RP events such as village hours and markets. I enjoying a quieter life in RP right now as I focus more on work
There are many facets about this game that captivate me, but roleplay has been my primary focus over the years.
I haven’t engaged too much in so-called endgame content for a while, instead having been sucked into the roleplaying community - which I aim to try to represent!
That’s 5/41, which means RPers are at about 12% of the WCC pool. IMHO, not bad representation.
Based on what I see of threads in the WCC subforum directly related to RP, it looks like Halite (who posted that last quote) is our go-to WCC member. Let’s hope Halite keeps a close watch on the WrA RP forum threads. Including this one.